I have adopted a LaMancha goat to live with our lonely African dwarf . Both are female. The Dwarf is about 8 months old with short new horns and the LaMancha is a few years old with full horns. I have already had the new goat quarantined ,wormed and given shots. Upon the first introduction both tried to butt heads and were semi aggressive, which I did expect. Due to the different sizes and ages, what would be the best way to eventually put them in the same area?